#3555BC#3555BC

#3555BC is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.6% C 0.166 H 267.0°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#3555BC
RGB	rgb(53, 85, 188)
HSL	hsl(226, 56%, 47%)
HSV	hsv(226, 72%, 74%)
CMYK	cmyk(71.8%, 54.8%, 0%, 26.3%)
CIE-LAB	lab(39.38, 24.01, -57.71)
CIE-LCH	lch(39.38, 62.51, 292.59°)
OKLab	oklab(48.63% -0.0088 -0.1662)
OKLCH	oklch(48.63% 0.166 267)
XYZ	xyz(13.7906, 10.8833, 48.9411)
Luminance	0.1089 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3555BC #BC9C35

analogous

#3599BC #3555BC #5935BC

triadic

#3555BC #BC3555 #55BC35

tetradic

#3555BC #BC3599 #BC9C35 #35BC59

square

#3555BC #BC3599 #BC9C35 #35BC59

split-complementary

#3555BC #BC5935 #99BC35

monochromatic

#1A2A5D #283F8C #3555BC #5D78D1 #8DA0DF

Accessibility & contrast

On white

6.61

#3555BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#3555BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3555BC

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3555BC	#FFFFFF	#000000	##FFFFFF
##3555BC	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C0

Deuteranopia (green-blind)

#0057BA

Tritanopia (blue-blind)

#006E80

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3555bc;
/* rgb */ color: rgb(53, 85, 188);
/* oklch */ color: oklch(48.6% 0.166 267.0);

Tailwind

colors: {
  custom: {
    50: '#7e84d1',
    500: '#3555bc',
    950: '#000000',
  },
}

SCSS

$custom: #3555bc;
$custom-light: #7e84d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3555bc",
  "rgb": {
    "r": 53,
    "g": 85,
    "b": 188
  },
  "hsl": {
    "h": 225.778,
    "s": 56.017,
    "l": 47.255
  },
  "oklch": {
    "l": 0.4863,
    "c": 0.16643,
    "h": 267
  },
  "luminance": 0.10885
}

Semantic roles & 50–950 ramp

primary

#3555BC

secondary

#C9B984

accent

#BC48DF

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3555BC

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →